This collection documents Belle Hancoff’s two LSD sessions guided by Walter Pahnke along with the help of Helen Bonny, as well as Pahnke’s discussion of Belle Hancoff’s battle with cancer in a letter to Lewis Hancoff. Stephen Hancoff discusses his mother’s illness in a response to Alexander Zaitchik’s article "lashback! Psychedelic Research Returns," and he also mentions his relationship to William Richards and Stanislav Grof.